Home / 861,055.36-1,292,381.10-434,890.46

Finding the Fourth Proportional to 861,055.36, 1,292,381.10 and 434,890.46

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Solution

The fourth proportional to 861,055.36, 1,292,381.10 and 434,890.46 is: 652,738.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,055.36 : 1,292,381.10 = 434,890.46 : x
  2. Step 2: Convert to fraction form
    861,055.36/1,292,381.10 = 434,890.46/x
  3. Step 3: Cross multiply
    861,055.36x = 1,292,381.10 × 434,890.46
  4. Step 4: Simplify right side
    861,055.36x = 562,044,211,074.31
  5. Step 5: Solve for x
    x = 562,044,211,074.31/861,055.36
  6. Step 6: Final answer
    x = 652,738.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.